EP 0714144 A1 19960529 - Cathode for lithium secondary battery and production method for the same
Title (en)
Cathode for lithium secondary battery and production method for the same
Title (de)
Kathode für Lithium Sekundärbatterie und Verfahren zu ihrer Herstellung
Title (fr)
Cathode pour pile secondaire au lithium et sa méthode de production
Publication
Application
Priority
JP 28793094 A 19941122
Abstract (en)
The invention provides a cathode for a lithium secondary battery including lithiated nickel dioxide with a large discharge capacity as an active material and having a high density so that a larger amount of the active material can be charged in a battery container with a limited volume, a production method for the same and a lithium secondary battery utilizing the cathode. The cathode for a lithium secondary battery includes lithiated nickel dioxide as an active material, and the lithiated nickel dioxide is produced by firing a mixture of a lithium compound and a nickel compound at a temperature ranging between 350 DEG C and 800 DEG C. The supernatant obtained by dispersing 5 g of the lithiated nickel dioxide in 100 cm<3> of water in a glass vessel for 5 minutes and allowing the resultant solution to stand for 30 seconds has pH of 12.00 or less. The production method includes the steps of obtaining the lithiated nickel dioxide as above and treating or milling the lithiated nickel dioxide in an atmosphere including carbon dioxide. <IMAGE>
IPC 1-7
IPC 8 full level
C01G 53/00 (2006.01); H01M 4/1391 (2010.01); H01M 4/48 (2010.01); H01M 4/485 (2010.01); H01M 4/52 (2010.01); H01M 4/525 (2010.01); H01M 4/54 (2006.01); H01M 10/052 (2010.01); H01M 10/36 (2010.01); H01M 10/0525 (2010.01)
CPC (source: EP US)
C01G 53/42 (2013.01 - EP US); H01M 4/1391 (2013.01 - EP US); H01M 4/485 (2013.01 - EP US); H01M 4/525 (2013.01 - EP US); H01M 4/54 (2013.01 - EP US); H01M 10/052 (2013.01 - EP US); C01P 2002/52 (2013.01 - EP US); C01P 2002/54 (2013.01 - EP US); C01P 2004/20 (2013.01 - EP US); C01P 2006/10 (2013.01 - EP US); C01P 2006/40 (2013.01 - EP US); H01M 4/0404 (2013.01 - EP US); H01M 10/0525 (2013.01 - EP US); Y02E 60/10 (2013.01 - EP)
Citation (search report)
- [X] EP 0554649 A1 19930811 - MOLI ENERGY LTD [CA]
- [X] EP 0345707 A1 19891213 - SAFT SA [FR]
- [DX] EP 0573040 A1 19931208 - MATSUSHITA ELECTRIC IND CO LTD [JP]
- [PX] EP 0643430 A1 19950315 - SUMITOMO CHEMICAL CO [JP]
- [PX] EP 0682377 A1 19951115 - SUMITOMO CHEMICAL CO [JP]
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0714144 A1 19960529; EP 0714144 B1 19990915; CA 2163414 A1 19960523; DE 69512182 D1 19991021; DE 69512182 T2 20000406; US 6103420 A 20000815
DOCDB simple family (application)
EP 95118294 A 19951121; CA 2163414 A 19951121; DE 69512182 T 19951121; US 84177697 A 19970505